Process of pbepaiilto ambtos containing liquefied gas



G. ORNST EIN.

PROCESS OF PREPARING AMPULS CONTAINING LIQUEFIED GAS.

APPLICATION FILED MAY I8| I917- FIENEWED OCT- 23.1919.

Patented Dec. 23,1919.

application sled May it, wit, aerial Tito. matte. tteuewetl watcher To all whom it may concern lde it lrnown that l, Greene Unns'rnrm a citizen of Germany, residing at New York,

til

in the county of New York, State of New ltorlr, have invented certain new and useful improvements in Processes oil Preparing .hmpuls Containing Liquefied Gas, of which the tollowing is a description, reference heing had to the accompanying drawings,

torming a part hereolf.

My invention relates to the preparation oil ampuls oi liquefied gas that is the packaging of liquefied gas in glass receptacles or containers of small. size.

Liquefied gas is used tor many important.

purposes. Onset the most important gases which is on the marlret in liquid torm is chlorin. This, as well as the other gases in liquid :lorm is put up tor sale in steel containers which are necessarily made very strong to resist the highpressure ot the gas.

tiuch containers are necessarily otconsi er ahle sire and while well adapted for use when a continuous supply or a conslderable amount oil the liquefied gas is required, are

not adapted tor use when onl' a small amount of gas is needed because o their size and weight and the apparatus necessary to draw oil? their contents. it is the purpose of my present invention to psovide a small container holding a limited quantity ct liquid gas adapted to he sately transported and to permit its contents to he used without apparatus tor drawing ed the gas.

With this and other ohjects hereinafter explained in view my invention consists in the method of preparing ampuls containing liquefied gas hereinafter described and claimed and inthe ampuls containingthe liquefied gas hereinafter described and claimed.

Referring to the drawings:

Figure l is a diagrammatic view ct apparatus adapted tor carrying out the first step of the method oi my invention.

Fig. 2 is a diagrammatic view of the up paratus for carrying out the second step of my invention and I Fig. 3 is a perspective view ct an ampul containin liquefied gas as prepared by the method 0 my invention. in th drawings 1 indicates the container ot the usual term tor holding liquefied gas such for instance as chlorin which has 'bfaen specification ct ltettera l atent.

nus. serial in. statue.

charge tube 8 as liquid. lFrom the discharge tube 3 the liquid runs into a receptacle 4:

having non-conducting walls such tor instance as the vacuum or so called thermos hottle, From this receptacle d the liquid. which under suitable condition or tempera ture will remain in'liquid condition for a considerable time, at least, is drawn hy any suitahle means as hy a siphon 5 into the ampul '1?" the siphon heing started into action hy air pressure trons a'lhulh llhis ampul consists oil a glass tube closed at its lower end oi small diameter relative "to length. l have toundla glass tales of 20 to 22 c. in. in len. h and 8 to 9 m. m...interior diameter suita le tor my purpose. The lower end oil this ampul is held in a reilrigerant tanlr t here shown as a tanlr or hon con taining as a refrigerant carhon diouid snow 9.. "llhc'ampul' is filled with the liquefied gas only tor about one third its length and liquid without pressure the upper part oi the ampul is free from ressure which would interfere with the sea ing operation.

Patented ec. tlth llfillfit lid till

ittter'the sealing operation is completed the ampul is removed from the retrigerant and may he transported with ordinary care with salety. -When the chlorin or other gas is'to he used the am ul must be hrolren and ot course the entire contents must be used at once. For use no makmg solutions ice . the am-pul should be broken within a strong be only such that there will benough space left above the surface of the liquid to allow for sealing without risk of radiation of the heat of the blast lamp reaching the liquid in the process of sealing.

While I have above described carbon dioxid as a. suitable'refrigerant for use in keeping the liquid gas at the temperature necessary to maintain it in liquid form Without such evaporation as would cause pressure which would interferewith sealing. the end of the ampul, any other cooling means may be used which will roduce the necessary low temperature. nd'while I have above mentioned minus 70 C. as a desirable temperature and have found this tempera.

. ture desirable in the preparation of ampuls containing liquid chlorin I do not desire to be limited to such tem erature in the preparation of ampuls of liquid chlorin or other li uefied gas.

t will of course be understood that the drawings herewith are illustrative merely and are not intended to limit the invention in any way.

Having thus described my invention what I claim is:

The herein described process of preparing an ampul containing liquefied gas which consists in reducing the temperature of the lower portion of the ampul to a temperature below the point at which egressure 1s necessary to maintain the liqu ed gas in liquid form, drawing the liquefied" gas from a source of supply into. the ampul to fill the lower portion only, and closing the upper end of the ampul y fusion.

In testimony whereof-I afiix my signature I this 12th day of May,'1917.

GEORG oRNs EiN. 

